Electric switch.



C. F. COOKSON. ELECTRIC SWITCH. APILIOATION mum APn, 1s,191o.

Patented July 2, 1912.

CLARENCE F. COOKSON, OF BROOKLYN, NEW YORK;

ELECTRIC SWITCH.

Specification of Letters Patent.

Application filed April 18, 1910. Serial No. 558,112..

Patented July 2, 1912.

To all whom it may concern:

Be it known that I, CLARENCE F. C0010 sex. a citizen of the United States, and resident of Brooklyn, county of Kings, and

State of New York, have invented certain new and useful Im rovements in Electric Switches, of which t c following is a specification.

The object of this invention is to rovide a safety switch for use on automobi es and other places where it is desirable to connect and disconnect an electric circuit and particularly to prevent unauthorized persons from making the electric connection.

'This invention IS in its nature a comb1nation lock in which the combination must be known to connect the circuit. It can be made in various forms and the combination made more or less complicated by makin" the apparatus with a more or' less number 0 ke s.

in the accompanying drawing forming part of this specification two forms of construction are shown.

Figure 1 shows the invention embodied in a right angled frame or case viewed from the back or underside, having the working parts exposed or in section. F g. 2 is a front view of the same. Fig. 3 is anend view of the same. Figs. 4 and 5 show another form of arrangement embodied in a circular case, Fig. 4 beln a section divided by dotted line shown in- Fig. 5; Fig. 5 being a sectional view. Fig. 6 is a sectional and end view of one of the movable pistons.

Like figures refer to like parts.

1 shown in Figs. 1, 2 and-3 is a rectangular case; 1' in F1 3 is a removable sectlon of the case; 2 in icates buttons slidable in the casel; 3 represents. springs surrounding the shank of the button; 4 is a screw forming a shank to the button; 5 is a piston slidable in passage way 6; 5 is a metallic ring or end piece on the iston a; 7 is a frame fixed to plunger 8, tie frame having prongs 9 movable in the passage ways 6; 10 represents springs forming electric conductors bctwecnthe pistons; 11 shows a pin for securing the springs in position in the case; 12 is the point of connection to the switch key;'-13 is where the wire from the batte'ry is connected; 14 is where the wire from the magneto is connected; 15 is the pivot on which swings lever 17; '16 is the inner end of the pivot 15 connected to a conthe pistons.

ductor, the conductor bearing againstone of In Figs. 4 and 5 are shown the same eleinents arranged in a small, compact case of circular form. cover of the case; 22 is a. non-conducting filler of the'case beinglsha ed to admit the,

moving parts; 23 is a diap iragm resting on supports on the inner side of the case having apertures for the shanks of the buttons25; 26 1s a springto keep the buttons in opera tive position; 24'represents screws holding the non-conducting fillrin position-inthe case; 27 is a piston ofnon-cond rial having a metallic end or ring and movable 1n passage way 30; 28 in Figitshows the non-conducting port-ionof a piston; 29 are conductors let 1nto"an'd* secured in it groove. in the non-conducting substance'and 75 formed so as to touch the pistons and n'riake' a complete circult, the bearingpointsbeing made angular or rounded so that the pres- 20 is the'case; 21 is the sure has a tendency to hold the piston in either position; 31 is a spider shaped piece having extended'members 32 and a protruding button 33. 34 is the shank of the spider shaped piecevwhich passes throughopenin in diaphragm 23; 35 is a spring on the shun I 34; 36 and ,37 arethe electric connections to the batte and. to the switch.

The action of this device is as follows An electric current supplied by a battery or by a magneto isconnected to one of the wires 36 or 37 in Fig.4, theothenwire being connected to the s ark coil. The cir cuit can be broken in ve difi'erenttplaces by the arrangements of the pistons as shown in Fig. 1. The electric connection is broken at the two lower lpiston's b1 reversing the pistons. To comp etc the e ectric circuit it IS necessary to press the two lowerbuttons moving the pistons soth'at the metallic ends of the ,pistons come in "contact with the springs, which will complete the circuit from either the buttons 13 or 14 throughthe lever 17 and pivot 15 and 16 and through the connecting springs-and 'iston's to"12,"a conductor being attached 0111 12 to the coil loo box. When it i B-"deeiredtobreak the'circuit, a ressureon the lun'ger' 8 carrying with it t e frame? and t e'prongs 9, pushes all of the pistons to normal,=position and unless all 0 may the pistons are turnedthe same way as the upper three pistons are shown,

the connection will be broken. To

ishaped piece 31 and rearranging the pisto remo'veth'e cover-of the .case' and turn.

in Figs. 4 and 5 the action of the parts is change, the combination it is only necessary,

one or more of the pistons end for end.

In the modified form of the deyice shown similar to the action as'dscribed in v Fig. 1,. the buttons being arranged in a circular case imcompactness and I the conductors 29 'clinngdto' suit. the circular form, pressure on the buttons 33 moving the'spider shaped piece31 so that the pistons are re-set the same as t-hey would be by pressure on plunger. 8 in Fig. 1. The change of comhiriation in the -ci1c1 1lar"form is made by taking off thec0ver21, taking out the spider tons 'by turning them end for end. 7 e

Having described my invention what I claim and desire to secure by Letters Patent is: c

In an electrical switch device, a number of push buttons, a corresponding number of reversible pistons 01 n0n-c0nducting substance separatefrom the push buttons and adapted to be shifted thereby, each piston hav ng a portion of its surface forming an electric conductor, and means for moving the pistons in the direction opposite to the movement caused by the push buttons, snip stantially-as shown and described.

CLARENCE F. COOKSON. Witnesses:

MANSON HUME,

G. A. EWLD. 

